Cast of The Godfather

Marlon Brando plays Don Vito Corleone, the powerful and respected head of the Corleone crime family.

Al Pacino portrays Michael Corleone, the initially reluctant son of Don Vito who becomes deeply involved in the family's criminal activities.

James Caan takes on the role of Sonny Corleone, the hot-headed and impulsive eldest son of Don Vito.

Robert Duvall plays Tom Hagen, the loyal and trusted advisor to the Corleone family.

Richard S. Castellano portrays Clemenza, one of the mafia members loyal to Don Vito.

Diane Keaton embodies Kay Adams, Michael Corleone's love interest who becomes entangled in the family's world.

Talia Shire plays Connie Corleone Rizzi, the sister of Michael and Sonny, and daughter of Don Vito.

Gianni Russo portrays Carlo Rizzi, Connie's abusive husband and a member of the Corleone family.

Sterling Hayden takes on the role of Captain McCluskey, a corrupt police captain involved with the mob.

John Marley plays Jack Woltz, a powerful Hollywood producer with ties to the underworld.

Richard Conte portrays Barzini, a rival mafia boss engaging in a power struggle with the Corleone family.

Al Lettieri plays Sollozzo, a drug lord seeking to expand his operations and forming an alliance with the Corleone family's rivals.